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Stells [14]
3 years ago
6

"Consider the reproductive isolating mechanisms described above. Do any of these apply to human beings? Write a few paragraphs i

n your notebook on this topic". this is my assignment, but i can't find it anywhere!! please help me!
Biology
1 answer:
8090 [49]3 years ago
3 0
Reproductive isolating mechanisms are barriers which impeded mating (prezygotic) or prevent the hybrid from developing properly (postzygotic) but the overall effect is to cause speciation by making it difficult for two diverging species to share genes. So one kind of mechanical isolation could be the usage of contraceptives. As of temporal isolation, or behavioral isolation could be exemplified by people who suffer from diseases that cause separation (such as HIV or cancer). I hope that this is the answer that you were looking for and it has helped you.
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Write two sentences using the vocabulary words above about plant cells:​
geniusboy [140]

Answer:

Cells are the basic unit of a living organism and where all life processes are carried out. Animal cells and plant cells share the common components of a nucleus, cytoplasm, mitochondria and a cell membrane. Plant cells have three extra components, a vacuole, chloroplast and a cell wall.

Explanation:

3 0
3 years ago
A nearby coworker using a torch to free up a stuck bolt accidentally ignites his shirtsleeve. as a trained first aid provider, y
LenaWriter [7]

The first thing to do is activate EMS. Use cool or cold water to cool the burn for 10 minutes as soon as possible. ( Do not use ice or frozen compress.) Early cooling will minimize the depth of injury and decrease pain. Remove jewelry near the affected area. Cover the injury with dry,  clean pad loosely to protect it. Do not give food or drink to injured person. Keep him comfortable until EMS arrives and takes over.

4 0
3 years ago
When bone tissue first evolved in vertebrates, it was found within _____?
Sonbull [250]
Exoskeleton

Exoskeleton is a evolutionary innovation. This is operated by muscles attached to it and acts as an armor. Other than support this is an adaptive mechanism to provide protection against predators. In vertebrates, it is considered as the dermal bone that developed via membranous ossification. Fishes retained their exoskeleton in the form of their scales. However, in some organisms terrestrial evolution allows the loss of exoskeleton and formed a more mobile endoskeleton,
3 0
3 years ago
If you cross a mule and a horse, you get a donkey. How many chromosomes does a donkey have?
madreJ [45]

Answer:

62

Explanation:

31 pairs

A mule is the offspring of a male donkey (a jack) and a female horse (a mare). A horse has 64 chromosomes, and a donkey has 62. The mule ends up with 63. Mules can be either male or female, but, because of the odd number of chromosomes, they can't reproduce.

3 0
4 years ago
In a community a species of birds has some individuals with a different size and others which statement correctly explains how p
krok68 [10]

Physical differences in beaks of birds would develop as a result of different environmental changes.

<h3>What is Evolution?</h3>

This is described as the process in which heritable characteristics are changed in species over successive generations. This occurs as a result of natural selection in which the traits suitable for survival are passed to the offspring.

This is usually as a result of a change in the environmental factors which ensures that the organisms are able to adapt so as not to die out and go extinct in this type of scenario.

Read more about Evolution here brainly.com/question/12271572

#SPJ1

3 0
2 years ago
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