BIOLOGY MIDDLE SCHOOL

Frogs produce a huge number of gametes at one time - WHY do you think this is ( HINT: Finding Nemo)?

Answers

Answer 1
Answer: Eggs, the hint wasn't even required. Gametes are sex are an organisms reproductive cells.

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Daren has sickle-cell disease. Because of the disease, some of Daren's blood cells are long and thin instead of being disk-shaped. Daren's father also suffers from sickle-cell disease, but his mother and two sisters do not. This is an example how A. a person can choose which genes he or she will inherit. B. cells can be influenced by genetic factors. C. cells always repair damaged genes immediately. D. a person cannot survive if even one cell becomes damaged.

Answers

Answer: B cells can be influenced by genetic factors

Explanation: Daren has sickle cell disease. Sickle cell disorder is a kind of disease that affects the hemoglobin in the red blood cells. Hemoglobin, is a molecule in red blood cells that delivers oxygen to cells throughout the body. People with Sickle cell disorder have hemoglobin molecules called hemoglobin S, which distort the shape of the red blood cells. A normal red blood cell has a disc shape but people with sickle cell like Daren have their red blood cells and distorted into a sickle, or crescent, shape

Explain how the process of asexual reproduction works. What events must a cell go through to successfully

Answers

Answer and Explanation:

In asexual reproduction, one or more freely existing organisms arises from a single parent. There are different types of asexual reproduction.

  1. Fission- this is a process by which a single-celled organism divides into two or more roughly equal parts. Binary fission is the division of an organism into two daughter cells.
  2. Spores formation- spores are unicellular bodies formed by cell division in parent organisms. When detached from parent, they germinate and grow into new individuals.
  3. Budding- it is a modified form of fission in yeasts. A small area of the cell wall of the parent cell softens and forms a protrusion. This enlarges until it is almost equal to the mother cell. The nucleus divide by mitosis. a constriction develops between the two which then separate.
  4. Vegetative production- it refers to the process whereby, a portion detached from a parent plant develops into a new self-sustaining plant.

Local environmental changes have no effect on the global climate.

FALSE

Answers

Answer:

It is false

Explanation:

They do have an effect on global climate like natural disasters

Final answer:

Local environmental changes, such as deforestation and industrial pollution, can contribute to global climate change by increasing levels of greenhouse gases.

Explanation:

The statement that local environmental changes have no effect on the global climate is FALSE. Even local changes can have drastic effects on the global climate over time. For example, deforestation in a local area can lead to an increase in greenhouse gases, contributing to global warming. Similarly, industrial pollution in a local region can also intensify climate change by releasing large quantities of CO2 and other gases into the atmosphere.

Learn more about Climate Change here:

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What is the plasma membrane made of?

Answers

Answer: lipids and proteins

Explanation: Like all other cellular membranes, the plasma membrane consists of both lipids and proteins. The fundamental structure of the membrane is the phospholipid bilayer, which forms a stable barrier between two aqueous compartments.

This right?

two heterozygous white (brown fur is recessive) rabbits are crossed. List the parent genotypes, draw and fill in a punnett square, and list the offspirng genotypes and phenotypes

Answers

Parent's genotypes are Bb and Bb andn the offsprings genotypes after crossing them will be BB, Bb and bb while phenotypes of 3 white rabbits and 1 brown.

What is a punnett square?

The genotypes of a specific cross or breeding experiment are predicted using the Punnett square, a square diagram. It bears Reginald C. Punnett's name, who developed the method in 1905. Biologists use the figure to calculate the likelihood that a child will have a specific genotype.

A person's genotype is made up of all the alleles they have for a certain gene. The sum of a person's attributes or observable characteristics is their phenotype. Unlike phenotype, which is only impacted by genotype, genotype is directly inherited from a person's parents.

Assume B is white, b is recessive brown ; Bb x Bb

    B    b

B  BB  Bb

b  Bb  bb

Genotypes: BB, Bb, bb

Phenotypes: 3 white, 1 brown

Learn more about punnett square, here:

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Assume B is white, b is recessive brown

Bb x Bb

B b
B BB Bb

b Bb bb

Genotypes: BB, Bb, bb
Phenotypes: 3 white, 1 brown

What do you call a collection of objects which interact?A. a system
B. the biosphere
C. Earth
D. organisms

Answers

The correct answer is A.) A System.

My reason being is mainly because we have organs and bones that all work together to help us live , this is called a system. 

The definition of System is : The assemblage ( gathering ) or combination of things or parts forming a complex or unitary whole.

______________________________________________________

I really hope that this helps you out a lot. Have a nice day.
A system is a collection of objects which interact, or a set of connected things or parts forming a complex whole. 

So, that would make (A. a system) your answer.

Have a Brainly Day!
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