BIOLOGY MIDDLE SCHOOL

All the different species within an ecosystem are collectively referred to as the: (1) niche (2) community (3) consumers (4) population

Answers

Answer 1
Answer: All the different species within an ecosystem are collectively referred to as the community. 

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PLEASE help me i am stuck In pea plants the allele for round seeds (R) is dominant and the allele for wrinkled seeds (r) is recessive. Under what conditions would we observe wrinkled seeds in a pea plant?
A) When the plant has a genotype RR
B) When the plant inherits a dominant allele from both parents
C) When the plant inherits a recessive allele from both parents
D)When a plant has a heterozygous allelic pair of the gene for seed shape

Answers

The answer is C.

(In order to observe wrinkled seeds in a pea plant, the genotype has to be rr).

Answer:

soo... did you get it right??

Also its C

Explanation:

How does mitosis differ in plants and animals?

Answers

Well, you are already know that cell plate in plant cells divides it in half and later it becomes a cell wall.
"In animal cells, the cell membrane pinches in the middle and the cytoplasm divides. In plant cells, the appearance of a cell plate shows that the cytoplasm is being separated." - Glencoe Science Book 7th Grade "Life Science" 

The above refers to the division of the cytoplasm, which is called cytokinesis. Although cytokinesis accompanies mitosis, it is not strictly part of it; mitosis is nuclear division. 

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In animal cells there is an organelle, the centriole, which is not found in plants. The centriole divides in two during prophase, and each daughter-centriole moves to a position that will be one pole of the spindle. 

However, the centriole is not essential for mitosis in animal cells, and plant cells do not have one. 

The term "microtubule organizing center" (MTOC) is used for any structure that forms the spindle. It is not yet clear what the MTOC is in plants.

Two organisms,each with the genotypes TtGg,mate. The chance of producing an offspring that has the dominant phenotype for height (T) and the recessive phenotype for color (g) is?A.3/16
B.7/16
C.9/16
D.11/16

Answers

D because 11/16 is the correct answer

Which statement best describes the process of sexual reproduction? A. A mushroom ejects spores into the air even in the harshest conditions. B. A sperm cell fertilizes a vertebrate's egg cell, creating a zygote. . C. Pollen is released with the aid of wind and water. D. A regular house fly begins as a maggot after budding.

Answers

B i would say it because its a sperm and a egg 

Answer:

B

Explanation:

Squid ward is a squid. So whats his 'nose'

Answers

it is a squid nose tenticle
Haha good question now im curious to lol

Q1 when does an embryo implant in the wall of the uterus
q2 suggest y pregnant women cant take some medications

Answers

Answer 1

The fertilisation occurs in the fallopian tube. By about the fifth day after fertilisation, the embryo finally reaches the uterus, where it implants itself in the endometrium, or uterine lining. Furthermore, implantation of a fertilised ovum is most likely to occur around 9 days after ovulation, however, this can range between 6 and 12 days.

Answer 2

Not all but certain medicines should not be taken by pregnant women because it can increase blood pressure, thinning of blood and it can increase contraction in the uterus causing the uterine lining to shed leading to miscarriage.
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Which of the following shows the path followed by nerve impulses in a reflex?
How is mitosis in plant cells different from mitosis in animalcells?APlant cells have rigid cell walls and no centriolesB Plant cells don't undergo mitosisCPlant cell mitosis is much slowerDPlant cell mitosis is much faster
The chart shows embryos of different animal phyla.Based on the evidence of their embryos, which pair of phyla are most closelyrelated?O A. Echinodermata and AnnelidaO B. Mollusca and ArthropodaO C. Mollusca and EchinodermataO D. Annelida and Chordata​
The process in which a gene from one organism is inserted into the DNA of another organism