The contractile vacuole expels water out of the cell by contrasting.
Answer: B
Explanation: Traits usually die off when they are unneeded by the organism, or if the trait causes harm to the organism's survival. Through natural selection, over time, the organisms with the best combination of traits for its survival will become the dominating species, and those with weaker traits may not survive long enough to pass off their traits to future offspring.
Answer:
The options
a. prehistoric archaeologist
b.archaeologist
c. Paleoanthropologist
d. paleoprimatologist
The CORRECT ANSWER IS c.
c. .paleoanthropologist
Explanation:
a. Prehistoric archaeology❌
It is the study of the previous times before historical records were used or established. It examines all the pre-urban societies of the world. It possess some unique activities and processes for evaluating material remains so that archaeologists can 'rebuild its ecological settings.
b. Archaeology, or archeology❌
It deals with the study of human processes via the recollection and evaluating of material culture. Its archaeological record employs the use of artifacts, architecture, biofacts or ecofacts and cultural landscapes.
c. Paleoanthropologist✔✔✔
Is the study of the origins and predecessors of the modern day human species, with the aid of fossils and several remnant. It deals with the study of extinct individuals of the genus Homo sapiens via its fossil remains.
d. paleoprimatology ❌
It is the study of ancient (majorly extinct) primates.
Answer:
True. You can get vitamin A as "preformed vitamin A" which is already active and/or you can get vitamin A as carotenoids which the body can turn into active vitamin A.
Explanation:
There are two different types of vitamin A that can be obtained from food:
1. Preformed vitamin A, which is already active, is found in animal products such as beef, fish, poultry and dairy products.
2. Provitamin A, which is the inactive form, is found in plant-based foods, such as fruits and vegetables. The most common type of provitamin A is β-carotene, which is a carotenoid that the body can turn into active vitamin A via an enzyme named β-carotene 15,15'-monooxygenase.
Answer:
Hi myself Shrushtee.
Explanation:
The following organelle is correctly matched with its function: d) Golgi bodies: packaging. The nucleus is the part of the cell that is in charge of heredity, the ER helps with protein synthesis, and mitochondria releases energy from molecules.
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