Calico cats are almost always female because the gene for coat color is
carried on the X chromosome. The Y chromosome in cats has no color
gene. Explain how a calico cat might be a male. *

Answer:In rare cases, a male cat can inherit two X chromosomes in addition to his Y chromosome (Klinefelter Syndrome). ... If the two X chromosomes do not carry the same allele (i.e., the cat's genotype is XBXbY), then the male will express calico coloration, just as a female would.

Negative feedback: If blood pressure is high, the blood vessels should
A. dilate (open up more)
B. constrict (get tighter)​

PLEASE HELP, WILL MARK BRAINLEST TO WHO ANSWERS FIRST WITH THE RIGHT ANSWER

The diagram below shows the sequence of events and processes which resulted in the origin of life.


Picture shows a flow chart with a rectangle labeled non-living matter at the top, an oval labeled A below it, and a rectangle labeled appearance of bacteria at the bottom.


Which of these processes best fits the oval labeled A?


chemical evolution

biological evolution

atmospheric transformation

geological transformation

As the amount of water vapor in the air increases, what happens

A. The temperature increases
B. The relative of humidity increases
C. The temperature decreases
D. The relative of humidity decreases

Where would a frameshift mutation cause the most damage?
Near the very end of the gene
Near the beginning of the gene
Near the center of the gene
All frameshift mutations are equal

What is Lucy? This is for Science they said it’s a gorilla I think I just need confirmation.

1. What is the goal of mitosis?

The primary reason for cell division, is to
A Grow
B Repair damage
C Replace themselves
D All of the above

First to answer gets brainliest plz try on it though

Why is it a good idea for humans to create models of how populations are changing?
What do models help us do?

Which of the following pairs is unrelated?
O Sugar-carbohydrate
O Fat-lipid
O Amino acid-protein
O Starch-nucleic acid

What is a neuron? What is its job?

I need help ASAP
Match the following definitions with the correct terms:
1. BB or Bb
2. purple-flower or white flower
3. Bb
4. Used to predict the possible genotypes and phenotypes from a genetic cross

Options to choose from:
- Genotype
- Heterozygous
- Phenotype
- Punnett square

Which nitrogen-containing substance is formed when amino acids are broken down?​

How is carbon dioxide affecting climate changes? Is there any evidence showing that humans can work on changing the Carbon Dioxide Levels? Can humans control them?


plsss need help!!
ASAP!!!!!!

systems of body which holds sperm and eggs

what can be analyzed to determine how many base pairs a segment of dna has?

Why are differences and similarities in DNA and proteins evidence of evolution?

Hemoglobin is a molecule in vertebrates that carries oxygen through blood from the lungs to other parts of the
body.
Based on its function, hemoglobin is an example of which type of macromolecule, and why?
А. It is a lipid because some lipids travel through blood.
B. It is a lipid because some lipids form the membranes of lung cells.
C. It is a protein because some proteins are responsible for transporting substances.
D. It is a protein because some proteins are responsible for regulating an organism's activities.

Which statement is true about photosynthesis?
Select one:

Photosynthesis happens in the mitochondria.

During photosynthesis, energy from the sun is stored in the chemical bonds of a glucose molecule.

One of the inputs of photosynthesis is oxygen.

Photosynthesis releases energy to the environment.

1 point
What chemical compound is responsible for the rotten egg smell that is
typical of seal farts?
Hydrogen disulphide
Hydrogen monoxide
Hydrogen peroxide
Hydrogen chloride

How did science play a role in diagnosing the water problem in Flint

14. Scientist wanted to know if temperature effected the movement of
blackworms. What is the dependent variable?

-Temperature

-Movement

-Amount of Blackworms

-Scientists

Help PLEASEEEEEE. WHAT DO I PUT IN THE GRAPH !!!!!111

What is the function of spindle fibers during cell division?

does coal, solar energy, hydroelectric power, or wind power take the most power

What kind of macromolecule is pictured below

How does embryology support evolution?

what is a condensed structure that contains the DNA that are visible during mitosis?

The _____________ is a gel-like fluid that fills plant and animal cells. It holds the organelles in place and gives each cell its shape. * 1 point

Which of the following lives in the pelagic zone?
sea birds
crabs
plants
fish

1. A mixture is a blend of two or more substances that have NOT
A. combined chemically
B. dissolved
C. been mixed together


Please answer as soon as possible !!