Answer:
Blood absorbs and distributes heat throughout the body. It helps to maintain homeostasis through the release or conservation of warmth. Blood vessels expand and contract when they react to outside organisms, such as bacteria, and to internal hormone and chemical changes.
1. Species vary over time
2. The fossil and the living species will have some similarities and some differences
· Abiotic factors are nonliving, such as temperature, sunlight, and soil in an ecosystem.
· Biotic factors are the living parts of an ecosystem, such as plants and animals.
Given the above, the biotic factor listed is evergreen trees in a coniferous forest.
The other options - soil, precipitation, and temperature - are abiotic.
Answer:
<span>C. evergreen trees present in a coniferous forest
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Answer:
Why would a plant cell have a chloroplast while an animal cell wouldn't? Chloroplasts are used to make food through photosynthesis. Plant cells make their own food, while animals do not.
Millions of sperm are needed because most of them don't make it up there to the egg. So i'm thinking maybe more sperm means the higher chance of the egg being fertilized.<span />
