Many ranchers prefer cattle without horns. Thepresence or absence of horns is genetically determined.
The allele for the absence of horns (A) is dominant to
the allele for the presence of horns (a).

A male with horns is mated with a heterozygous female
without horns. What percentage of the offspring would
be expected to have horns? (1 point)

A. 25%

B. 50%

C. 75%

D. 100%

Answers

Answer 1
Answer: Well, that is 50%. Just do all 4 cases and you find that in 2 of them you get horns.
Answer 2
Answer: 50%. You would set up a punnett square and find that the female would pass the dominant allele to 2 of 4 offspring.

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The area around a pond is cooler than the rest of the forest. Which term describes the area around the pond? A. Biome

B. Microclimate

C. Macroclimate

Answers

Microclimate is an area around a pond that is much cooler than the rest of the forest. Microclimate is a climate in a small area in which makes that specific area have a different climate. It may be colder, warmer, wetter, or drier.

Answer:Microclimate

Explanation: hope this helps just did the plato its right

…Unless actions are taken to slow the decline of domesticated honeybees and augment[increase] their populations with wild bees, many fruits and vegetables may disappear from
the food supply, said Claire Kremen, a conservation biologist at Princeton University in
New Jersey.…
The honeybee decline, which is affecting domesticated and wild bee populations
around the world, is mostly the result of diseases spread as a result of mites and other
parasites as well as the spraying of crops with pesticides, scientists say.…
Source: “Bee Declines May Spell End of Some Fruits, Vegetables,”
National Geographic News, October 5, 2005
The decrease in the honeybee population is partly due to
(1) the use of pesticides (3) the use of fertilizers
(2) a decrease in prey (4) a decrease in fruits and vegetables

Answers

The decrease in the honeybee population is partly due to the use of pesticides according to this article, although it should be noted that there are other factors as well. 


I would also have to say: 1) the use of pesticides

I did a powerpoint presentation on the decrease of honeybees for biology in college. I cannot find the presentation I did however, I do remember some of the points I made.

Varroa Mites aka Varroa destructors (parasite) are also contributing to the honey bee population decreasing. They latch onto the honeybees and feed off of them. They also feed off of the larva's (baby version of a honeybee).  

Another issue could be that GMOs. Plants DNAs have been altered so that they can fight disease  and kill unwanted bugs.

Another issue is population ecology, which deals with density independent and dependent factors. Density-independent, deals with habitat destruction by natural disasters or humans.  Dependent factors- overcrowding of an area.

Hopefully this helped and good luck.


When you are rested, do you have more ATP or ADP?

Answers

During the resting phase, the amount of the ATP (adenosine triphosphate) increases in the body. The Breaking down of bonds present in ATP results in the formation of ADP (adenosine diphosphate) and generates energy.

In resting stage, the  body generates the energy to be used after this. So, the ATP molecules are conserved. So, in the resting phase, there would more ATP than ADP.

ATP- Because ATP Is Being Built Uo And Stored In Your Bodys Cells 

Salt marshes are primarily influenced by

Answers

Salt marshes are primarily influenced by the tidal flow.

Salt marshes are primarily influenced by the tides

In vertebrates, chemical messengers called hormones are secreted by the _____ system. endocrine excretory hormonal pituitary

Answers

The correct answer should be the endocrine system.

Hormones are secreted by endocrine glands in endocrine systems. Opposite of this would be the exocrine system consisting of exocrine glands.

The correct answer is endocrine system.

Endocrine system in vertebrates consists of endocrine glands. Endocrine glands do not have ducts thus, they are also called as ductless glands. The glands which secretes enzymes are glands with duct, called exocrine glands.    Therefore, the hormones secreted from endocrine glands are directly poured into the blood for the action on target organs. Examples of endocrine glands are pituitary gland, thyroid gland, adrenal gland.  

How do the organisms in different levels relate to one another ?

Answers

Each organism corresponds with one another because one organism feeds on another and so on and so forth