Which of the following structures is an extension of the petiole into the leaf blade?

lamina

mesophyll

midrib

Venus is sometimes thought of as Earth's sister planet. In some ways the two planets are very similar. Venus is only slightly smaller than Earth, has a similar density and chemical composition. Yet Venus does not support life like Earth.

Sir isaac newton was sitting under an apple tree when an apple tree on his head. Was the force acting on the apple doing so directly or at a distance?

Mendel's finding that the inheritance of one trait had no effect on the inheritance of another became known as the law of separate convenience. law of universal inheritance. law of independent assortment. law of dominance.

What are the prerequisites for natural selection to take place

Which of the following properties is not used to define a mineral? Question 1 options: Its crystal structure Its chemical composition Its state of matter (solid, liquid, gas) Its color

Which process copies from DNA onto mRNA

State two proteins in blood which are responsible for determine the blood group of a person

The statement, "Energy can neither be created nor destroyed, but can change from one form to another," is the first law of thermodynamics the second law of thermodynamics the third law of thermodynamics scientifically unproven

How do plants living in deep shade manage to make their food

What can cells can be defined as