BIOLOGY HIGH SCHOOL

In which structure of the female reproductive system is a zygote typically found? A. Fallopian tube
B. Uterine wall
C. Uterus
D. Ovary

i think it is A but im not sure

Answers

Answer 1
Answer:

Zygote is formed in the Fallopian tube.

Once in a month the egg is released from the ovary to the fallopian tube where the sperm of male is present for the process of fertilization which results in formation of zygote. Zygote remains in the fallopian tube for the next three to four days. Then it travels to the uterus for the implantation where the growth and nourishment of embryo takes place.
Answer 2
Answer: It's A. Fallopian Tube. The ovaries create the egg and the fallopian tubes hold the zygote until it is fertilized, then transfer it to the uterus.

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Female salmon drop their eggs at the bottom of the river, and then the male salmon come by and release sperm over them. This is called _____. external fertilization internal fertilization conjugation pollination
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Teak, a highly prized tropical hardwood, is used extensively for outdoor furniture. Unfortunately, teak is grown in only a few locations throughout the world and native trees are becoming scarce due to repeated harvesting and the clear-cutting of forests. Logging teak forests disrupts the natural habitat of many other species and reduces local biodiversity. Foresters, seeking a reasonable solution to this problem, might consider ALL BUT

Answers

Answer:

The correct option is C. Growing farm crops in greenhouses instead of on land previously home to teak trees.

Explanation:

Teak is known to be the finest quality wood and is expensive. Naturally, it can take 40 years for a tree to produce the teak wood.

As it is the finest quality wood, scientists should try their best to replant the Teak trees.

Growing farm crops in greenhouses is an expensive method and also, it is not a reliable solution to the problem mentioned in the question. Hence, Option C is the answer.

Rest all options can increase the productivity of teak.

Answer:

C) growing farm crops in greenhouses instead of on land previously home to teak trees.

Explanation:

USATestprep said so

Living cells cannot use heat to provide the activation energy for biochemical reactions because ________. Which choice(s) complete the sentence correctly?

Answers

Since you did not give a list of choices,here are some reasons why living cells cannot use heat to provide the activation energy for biochemical reactions:

>Heat can never be used to do work. 
>Heat is not readily available to all living cells. 
>Heat doesn't provide the activation energy for their reactions.

Answer: B) answer choices II and IV

Explanation:

heat at excessive amounts denatures proteins

When a critical temperature is reached proteins no longer function

Select all that apply Smaller groupings within a species are called _____. varieties/ races / breeds/ mongrels

Answers

Varieties a number or collection or any of various groups of animals ranking below a species

Breeds a group of animals for reproduction by means of sexual process

Answer:

The correct answers would be varieties, races, and breeds.

In binomial nomenclature, variety refers to the taxonomic rank present below the species and subspecies. It is mainly used in the nomenclature of plants.

In a taxonomic hierarchy, race refers to the informal rank below subspecies. The race includes a genetically distinct group of organisms within the same species.

Breeds refer to the different varieties of same species. These organisms similar to appearance, behavior, and other characteristics. It is mainly used for domesticated animals. For example, Rottweiler and German Shepherd are two different breeds of dog.

Over time, data that support the successfulevolution of a species would include observations
that describe
(1) an increase in the genetic changes occurring
in body cells
(2) a decrease in the genetic variety carried in
sex cells
(3) an increase in the proportion of offspring
that have favorable characteristics
(4) a decrease in the proportion of the population
that has beneficial traits

Answers

Evolution can be defined as the heritable changes occurring in the populations over the time through the successive generations. The process of evolution is helped by the natural selection of the favorable traits and the elimination of the unfit traits from the environment. An increased proportion of favorable characteristics in the offspring will show the proof of successful evolution.

Hence, the correct answer is 'option 3 - an increase in the proportion of offspring with favorable characteristics'.
(3) an increase in the proportion of offspring
that have favorable characteristics
Over time, data that support the successful evolution of a species would include observationsthat describe


NOT:
(1) an increase in the genetic changes occurring
in body cells
(2) a decrease in the genetic variety carried in
sex cells
(4) a decrease in the proportion of the population
that has beneficial traits

To classify an organism a scientist finds in the field, which of these will the scientist first compare to other known organisms?A. Dietary habits
B. Ecological niche
C. Physical structure
D. Reproductive method

Answers

The answer is C. Physical structure.

Different species can share dietary habits, ecological niches, and reproductive method although they are not related. So, classifying organisms based on these features is not helpful a lot. It is known that different species differ in DNA sequence. Since physical structures are determined by DNA sequences, physical structures could show in first sight difference between species. Therefore, to classify organism found in the field, the scientist will start from comparing its physical structures to the other known organisms.

Hat is the difference between DNA and RNA? A. DNA is a protein and RNA is a nucleic acid.
B. DNA uses deoxyribose and RNA uses ribose.
C. DNA has adenine and RNA has thymine.
D. DNA has thymine and RNA has uracil.

Answers

The difference between DNA && RNA is 'DNA uses deoxyribose  and RNA  uses ribos ' 


So, your answer would have to be. B. DNA uses deoxyribose  and RNA use ribose"
DNA is a long polymer with deoxyriboses and phosphate backbone. Having four differentnitrogenous bases: adenine, guanine, cytosine and thymine.RNA is a polymer with a ribose and phosphate backbone. Fourdifferent nitrogenous bases: adenine, guanine, cytosine, and uracil. maybe this helps
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