Which of the following are environmental problems faced by today's world?

Pollution

Loss of habitat

Contamination of the food chain

All of the above

Plants that have thick, fleshy stems to prevent water loss are known as

Which of the choices below is the parent cell for all formed elements of blood? A) polymorphonuclear cell B) pluripotent stem cell (hemocytoblast) C) megakaryocyte D) NK cell

Scientists are infallible in their field of knowledge. True or false.

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match the terms to their descriptions.

Fungi are eukaryotic organisms. Scientists have found it more challenging to develop treatments for fungal infections (e. g., yeast infections, athlete's foot, and certain nail infections) than for bacterial infections. Why is this so?

Which of these is an example of an endoparasitic relationship? O A. A tapeworm living in an animal's intestine O B. A rabbit eating lettuce in a farmer's garden O C. A tick living in an animal's fur coat O D. A snake eating a mouse in a cornfield

Why is the presence of organic material in the soil important? A) It wards away plant eating organisms. B) It increases plant growth. C) It increases sunlight absorption. D) It increases water absorption.

Which derived characteristic is shared by at least four organisms? Large brain Lungs Mammary glands Placenta

Question 2 For an object to remain at rest, which of the following must be true? A. The forces on it are balanced B. There is no friction C. Gravity doesn't act on it D. The object has no mass

Identify another invertebrate chordate other than hagfish.